16 December 1993 From electric field-induced second harmonic generation (EFISH) to electro-optic measurements of nonlinear chromophores
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Abstract
Experimental measurements of molecular hyperpolarizabilities can be useful in two ways. First, they allow comparison between different chromophores, so that structure-function relationships can be understood and increasingly nonlinear compounds synthesized. This application requires only good relative measurements. The second and ultimately more important application is prediction of the macroscopic nonlinear optical properties of custom materials. The latter application requires accurate absolute values for the molecular parameters. Examples of both types of comparisons are discussed below. We describe experimental measurements on several types of nonlinear optical chromophores, and the choice of conventions and reference standards that leads to accurate predictions of electro- optic coefficients in poled polymers. The degree to which nonlinearity and thermal stability are correlated is also discussed.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Christopher R. Moylan, Christopher R. Moylan, Sally A. Swanson, Sally A. Swanson, C. A. Walsh, C. A. Walsh, John I. Thackara, John I. Thackara, Robert J. Twieg, Robert J. Twieg, Robert D. Miller, Robert D. Miller, Victor Y. Lee, Victor Y. Lee, } "From electric field-induced second harmonic generation (EFISH) to electro-optic measurements of nonlinear chromophores", Proc. SPIE 2025, Nonlinear Optical Properties of Organic Materials VI, (16 December 1993); doi: 10.1117/12.165256; https://doi.org/10.1117/12.165256
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